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Horava-Lifshitz gravity with detailed balance
Daniele Vernieri, Thomas P. Sotiriou
Horava-Lifshitz gravity with "detailed balance" but without the projectability assumption is discussed. It is shown that detailed balance is quite efficient in limiting the prolife…
Slowly rotating black holes in Horava-Lifshitz gravity
Enrico Barausse, Thomas P. Sotiriou
In a recent paper we claimed that there there are no slowly rotating, stationary, axisymmetric black holes in the infrared limit of Horava-Lifshitz gravity, provided that they are…
Surface singularities in Eddington-inspired Born-Infeld gravity
Paolo Pani, Thomas P. Sotiriou
Eddington-inspired Born-Infeld gravity was recently proposed as an alternative to general relativity that offers a resolution of spacetime singularities. The theory differs from Ei…
A no-go theorem for slowly rotating black holes in Horava-Lifshitz gravity
Enrico Barausse, Thomas P. Sotiriou
We consider slowly rotating, stationary, axisymmetric black holes in the infrared limit of Horava-Lifshitz gravity. We show that such solutions do not exist, provided that they are…
Scale hierarchy in Horava-Lifshitz gravity: a strong constraint from synchrotron radiation in the Crab nebula
Stefano Liberati, Luca Maccione, Thomas P. Sotiriou
Horava-Lifshitz gravity models contain higher order operators suppressed by a characteristic scale, which is required to be parametrically smaller than the Planck scale. We show th…
Dynamical apparent horizons in inhomogeneous Brans-Dicke universes
Valerio Faraoni, Vincenzo Vitagliano, Thomas P. Sotiriou +1
The presence and evolution of apparent horizons in a two-parameter family of spherically symmetric, time-dependent solutions of Brans-Dicke gravity are analyzed. These solutions we…